Question

HI ARMY !!!PLEASE ANSWER

What is the angle of elevation if they are standing at a distance of 42m away from the monument (height of monument = 42 metres)? (a) 30° (b) 45° (c) 60° (d) 0° I want explanation answer if you know
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I know tha answer is 45°
BUT SOLVE IT !!!​

Answer 1

answer 15

Step-by-step explanation:

let angle be x

h=42

p=42

tanx=42/42

tanx=1

since tan 45 =1

so x=45

Answer 2

Answer:

tringlearea=

2

1

×base×height

so \: base \: is \: 15cmsobaseis15cm

And we assume that height is x

so equation is,

80 = \frac{1}{2} \times 15 \times x80=

2

1

×15×x

80 \times 2 = 15x80×2=15x

160 = 15x160=15x

x = \frac{160}{15}x=

15

160

x = 10.66cmx=10.66cm